2025 Volume 34 Issue 1
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Fang-Fang Du(杜芳芳)†, Zhi-Guo Fan(范志国), Xue-Mei Ren(任雪梅), Ming Ma(马明), and Wen-Yao Liu(刘文耀)‡. 2025: Established conversions for hybrid entangled states assisted by error-predicted parity-discriminated devices, Chinese Physics B, 34(1): 010303. doi: 10.1088/1674-1056/ad8fa0
Citation: Fang-Fang Du(杜芳芳)†, Zhi-Guo Fan(范志国), Xue-Mei Ren(任雪梅), Ming Ma(马明), and Wen-Yao Liu(刘文耀)‡. 2025: Established conversions for hybrid entangled states assisted by error-predicted parity-discriminated devices, Chinese Physics B, 34(1): 010303. doi: 10.1088/1674-1056/ad8fa0

Established conversions for hybrid entangled states assisted by error-predicted parity-discriminated devices

  • Received Date: 01/09/2024
    Accepted Date: 27/10/2024
  • Fund Project:

    This work was supported by the National Key R&D Program of China (Grant No. 2022YFB3203400), the National Natural Science Foundation of China (Grant No. 61901420), and Fundamental Research Program of Shanxi Province (Grant No. 20230302121116).

通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Established conversions for hybrid entangled states assisted by error-predicted parity-discriminated devices

Fund Project: 

Abstract: Hybrid entangled states are crucial in quantum physics, offering significant benefits for hybrid quantum communication and quantum computation, and then the conversion of hybrid entangled states is equally critical. This paper presents two novel schemes, that is, one converts the two-qubit hybrid Knill-Laflamme-Milburn (KLM) entangled state into Bell states and the other one transforms the three-qubit hybrid KLM state into Greenberger-Horne-Zeilinger (GHZ) states assisted by error-predicted and parity-discriminated devices. Importantly, the integration of single photon detectors into the parity-discriminated device enhances predictive capabilities, mitigates potential failures, and facilitates seamless interaction between the nitrogen-vacancy center and photons, so the two protocols operate in an error-predicted way, improving the experimental feasibility. Additionally, our schemes demonstrate robust fidelities (close to 1) and efficiencies, indicating their feasibility with existing technology.

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